1144335142 has 8 divisors (see below), whose sum is σ = 1726425216. Its totient is φ = 568860072.

The previous prime is 1144335139. The next prime is 1144335197. The reversal of 1144335142 is 2415334411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1144335142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1653318 + ... + 1654009.

It is an arithmetic number, because the mean of its divisors is an integer number (215803152).

Almost surely, 2^1144335142 is an apocalyptic number.

1144335142 is a deficient number, since it is larger than the sum of its proper divisors (582090074).

1144335142 is a wasteful number, since it uses less digits than its factorization.

1144335142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307502.

The product of its digits is 5760, while the sum is 28.

The square root of 1144335142 is about 33828.0230282528. The cubic root of 1144335142 is about 1045.9664272232.

Adding to 1144335142 its reverse (2415334411), we get a palindrome (3559669553).

The spelling of 1144335142 in words is "one billion, one hundred forty-four million, three hundred thirty-five thousand, one hundred forty-two".